図書館情報メディア研究科パンフレット2016(日本語)

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学位論文(2013年度修了)12The ontology dened a common vocabulary for cloud archives, and dened the roles and responsibilities for data creation and transfer, including the registration of cloud-based content creation systems. We dened the classes, object properties, data properties and annotations necessary to describe the dierent agents, objects, events and rights that comprise a cloud archive built on our model.We evaluated the ontology with a prototype system, using real-world examples of cloud systems, digital objects and metadata. We found that the ontology was able to describe the chosen components successfully, and that it improved metadata interoperability between content creating applica-tions and the services providing preservation metadata.（研究指導担当教員　杉本 重雄）In recent years there has been a huge growth in the use of cloud computing for digital content. With this move to cloud computing, organizations are gaining a number of benets, such as economies of scale, reduction of capital expenditure, on-demand scalability and so on. However, the outsourcing of hardware, software and data storage to a third party makes it more dicult to guarantee the long-term preservation of archive worthy content. Our research examined cloud computing from an archiving perspective and explained how this new technology ts with existing models of digital archiving, exemplied by the Open Archival Information System (OAIS) reference model. Based on the ndings of the examination, we proposed a model for a cloud archiving system to improve interoper-ability between Producer and Archive using concepts and information types from OAIS.We used the lessons learned from the model to design an application prole using the Singapore Framework for Dublin Core Application Proles. The application prole was an important step towards implementation, because it allowed us to analyze the dierent data types present in a cloud archive.The nal step towards implementation was the creation of a domain ontology for cloud archives, based in part on the PREMIS Editorial Committee ontology for the PREMIS Data Dictionary. The domain ontology was based on our original layered model of cloud computing where lower layers pro-vide shared services to higher layers, and it focuses on the submission of generic Submission Information Packages with PREMIS preservation metadata. 博士（情報学）Preserving Records in the Cloud ‒ A Model to enhance Metadata Interoperability in a Cloud EnvironmentJan Askhoj学位論文(2013年度修了)

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